<template>
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>权限管理</el-breadcrumb-item>
            <el-breadcrumb-item>角色列表</el-breadcrumb-item>
        </el-breadcrumb>

        <el-card>
            <el-row>
                <el-col>
                    <el-button type="primary">添加角色</el-button>
                </el-col>
            </el-row>
            <el-table :data="rolelist" border stripe>

                <el-table-column type="expand">

                    <template slot-scope="scope">
                        <el-row :class="['bdbottom', i1 === 0 ? 'bdtop' : '']" v-for="(item1, i1) in scope.row.children"
                            :key="item1.id">
                            <el-col :span="5">
                                <el-tag closable @close="removeRightById(scope.row, item1.id)">
                                    {{ item1.authName }}
                                </el-tag>
                                <i class="el-icon-caret-right"></i>
                            </el-col>
                            <el-col :span="19">
                                <el-row :class="[i2 === 0 ? '' : 'bdtop', 'vcenter']"
                                    v-for="(item2, i2) in item1.children" :key="item2.id">
                                    <el-col :span="6">
                                        <el-tag type="success" closable @close="removeRightById(scope.row, item2.id)">{{
                                            item2.authName }}</el-tag>
                                        <i class="el-icon-caret-right"></i>
                                    </el-col>
                                    <el-col :span="18">
                                        <el-tag type="warning" v-for="(item3, i3) in item2.children" :key="item3.id"
                                            closable @close="removeRightById(scope.row, item3.id)">{{ item3.
                                            authName}}</el-tag>
                                    </el-col>
                                </el-row>
                            </el-col>
                        </el-row>

                    </template>

                </el-table-column>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="角色名称" prop="roleName"></el-table-column>
                <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
                <el-table-column label="操作" prop="level">
                    <template slot-scope="scope">
                        <el-button size="mini" type="primary" icon="el-icon-edit">编辑</el-button>
                        <el-button size="mini" type="danger" icon="el-icon-delete">删除</el-button>
                        <el-button size="mini" type="warning" icon="el-icon-setting"
                            @click="showsetRightDialog(scope.row)">分配角色</el-button>
                    </template>
                </el-table-column>
            </el-table>
        </el-card>
        <el-dialog title="分配权限" :visible.sync="setRightDialogVisible" width="50%"
        @closed="setRightDialogClosed">
            <el-tree :data="rightslist" ref="treeRef" :props="treeProps" show-checkbox node-key="id" default-expand-all
                :default-checked-keys="defKeys"></el-tree>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRightDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="allotRights">确 定</el-button>
            </span>
        </el-dialog>

    </div>
</template>

<script>
export default {
    data() {
        return {
            rolelist: [],
            setRightDialogVisible: false,
            rightslist: [],
            treeProps: {
                label: 'authName',
                Children: 'children'

            },
            defKeys: [],
            roleId : ''
        }
    },
    created() {
        this.getRolesList()
    },
    methods: {
        async getRolesList() {
            const { data: res } = await this.$https.get('roles')
            if (res.meta.status !== 200) {
                return this.$message.error('获取角色列表失败！')
            }
            this.rolelist = res.data
            console.log(this.rolelist)
        },
        async removeRightById(role, rightId) {
            const confirmResult = await
                this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(err => err)

            if (confirmResult !== 'confirm') { return this.$message.info('取消了删除!') }

            const { data: res } = await this.$htpps.delete(
                `roles/${role.id}/rights/${rightId}`
            )
            if (res.meta.status !== 200) {
                return this.$message.error('删除权限失败!')
            }
            role.children = res.data
        },

        async showsetRightDialog(role) {
            this.roleId = role.id
            const { data: res } = await this.$https.get('rights/tree')

            if (res.meta.status !== 200) {
                return this.$message.error('获取权限数据失败!')
            }
            this.rightslist = res.data
            console.log(this.rightslist)
            this.getLeafKeys(role, this.defKeys)
            this.setRightDialogVisible = true
            console.log(this.defKeys)


        },
        getLeafKeys(node, arr) {
            if (!node.children) {
                return arr.push(node.id)
            }
            node.children.forEach(
                item => this.getLeafKeys(item, arr))

        },
        setRightDialogClosed(){
            this.defKeys = []
        },
        async allotRights(){
            const keys = [
                ...this.$refs.treeRef.getCheckedKeys(),
                ...this.$refs.treeRef.getHalfCheckedKeys()
            ]
            const idStr = keys.join(',')
            const {data:res} =  await this.$https.post(`roles/${this.roleId}/rights`,{rids:idStr})

            if(res.meta.status !==200){
                return this.$message.error('分配权限失败')
            }
            this.$message.success('分配权限成功')
            this.setRightDialogVisible = false;
            this.getRolesList();


         }


    }
}

</script>

<style lang="less" scoped>
.el-tag {
    margin: 7px;
}

.bdtop {
    border-top: 1px solid #eee;
}

.bdbottom {
    border-bottom: 1px solid #eee;
}

.vcenter {
    display: flex;
    align-items: center;
}
</style>